electrify | Package your Meteor apps with Electron , and butter | Runtime Evironment library

I have an Arraylist with these attributes as shown below, and some of them have "," and "." and "?" after the words. I would like to replace the character with nothing, so as to remove them. I tried something like this:

I have an ArrayList of Customers, and I want to add some elements of this list but not all of the Customers into another class called PayingCustomers . How would I be able to add specific values of an ArrayList into my class constructor? Kindly ignore some of the commented lines I have which is just me working on other elements of my project.

Customer.java:

I'm pretty troubled with android NFC transacting with chip's FIFO cache area. Another side(B) and android app(A): B was electrify to chip,and B write data to chip's FIFO cache area by C language. The chip's FIFO cache area can not save data after outage, and when chip's FIFO cache area send all data, the chip's FIFO cache area will clear.

The situation is, A close to chip, send a APDU command, now chip receives the command and produces a signal. Then, the B detects the chip's signal, and grabs the command, then, B gets the command's first byte(fb), more then, B write [fb+data+9000] to chip's FIFO cache area. Finally, the transaction of send data back to A manage with chip self and we don't know the chip how to manage the send back.

The problem is, when B's write [fb+data+9000] less than 15 bytes(means data only 12 bytes), A can receive the [fb+data+9000] from chip. But the [fb+data+9000] more than 15 bytes, A throws TagLostException.

The chip use ISO14443-4 protocol.

The command:

The transact code: `